<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			* {
			 margin: 0;
			 padding: 0;
			}
			@media screen and (min-width: 320px) {
				html {
					font-size: 50px;
				}
			}
			@media screen and (min-width: 640px) {
				html {
					font-size: 100px;
				}
			}
			
			.top {
				height: 1rem;
				font-size: .5rem;
				background-color: #BDB76B;
				color: red;
				text-align: center;
				line-height: 1rem;
			}
		</style>
	</head>
	<body>
		<!-- 
		 
		 
		 
		 -->
		 <div class="top">
		 	购物车
		 </div>
	</body>
</html>
